Perhaps you should try some spelling variations:
"modified write optimisation algorithms" » "modified write optimization algorithms", "modified write estimation algorithms", "modified write estimation algorithm", "modified write optimization algorithmss", "modified write estimation algorithmss"
"modified objective optimisation algorithm" » "modified objective optimization algorithm", "modified multiobjective optimization algorithm", "modified objective optimization algorithms", "modified objective estimation algorithm", "modified objective estimation algorithms"

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (("modified write optimisation algorithms") or ("modified objective optimisation algorithm"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("modified write optimisation algorithms") OR ("modified objective optimisation algorithm")).
• Removing quotes may allow a broader search: (( modified write optimisation algorithms ) or ( modified objective optimisation algorithm )).
• Adding a wildcard symbol may retrieve word variants: (("modified write optimisation algorithms") or ("modified objective optimisation algorithm"))*.